Home / 230,372.79-345,588.41-90,113.19

Finding the Fourth Proportional to 230,372.79, 345,588.41 and 90,113.19

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Solution

The fourth proportional to 230,372.79, 345,588.41 and 90,113.19 is: 135,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,372.79 : 345,588.41 = 90,113.19 : x
  2. Step 2: Convert to fraction form
    230,372.79/345,588.41 = 90,113.19/x
  3. Step 3: Cross multiply
    230,372.79x = 345,588.41 × 90,113.19
  4. Step 4: Simplify right side
    230,372.79x = 31,142,073,601.56
  5. Step 5: Solve for x
    x = 31,142,073,601.56/230,372.79
  6. Step 6: Final answer
    x = 135,181.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.